CN109882664A - Steel band reinforced spiral ripple pipe and its production technology - Google Patents
Steel band reinforced spiral ripple pipe and its production technology Download PDFInfo
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Abstract
The present invention relates to a kind of steel band reinforced spiral ripple pipe and its production technologies, the polyethylene inner layer and outer layer of polyethene include following component, HDPE, carbon nanotube, epoxidized soybean oil, aluminium nitride, dispersing agent, lubricant, defoaming agent, coupling agent, antioxidant, black masterbatch；The black masterbatch includes following component, HDPE, calcium activated, dispersing agent, lubricant, toughener, carbon black.Preparation process includes: steel band frosting treatment, and-surface coating adhering resin layer-prepares black masterbatch and adhering resin-polyethylene extrusion internal layer-first respectively and steel band is placed in polyethylene inner layer again-is granulated, rear polyethylene extrusion outer layer is compounded on steel band after then mixing the component of outer layer of polyethene.The material component selection of inside and outside layer is consistent, the substrate of adhering resin layer is consistent with the substrate of internal layer and outer layer, the case where improving the layering occurred using the later period, and improve the non-uniform situation of carbonization effect material property caused by the processing conditions difference of unlike material.
Description
Technical field
The present invention relates to the technical fields of buried water pipe, more particularly, to a kind of steel band reinforced spiral ripple pipe and its production
Technique.
Background technique
Steel band reinforced polyethylene spiral ripple pipe is using high density polyethylene (HDPE) as matrix, and surface coats the steel band of adhering resin
Waveform is shaped to as main support structure, winds compound integral structure-wall pipe material with polythene material.And steel strip reinforced
Polytene corrugated tube combines the property such as flexible, corrosion-resistant, wear-resistant of the high rigidities of steel, high intensity and polyethylene well
Can, it can satisfy the application requirement of various engineering, have been widely used for the neck such as highway, Municipal Construction of Drainage Works
Domain, especially using more in the large foundation engineering project for requiring service life length.
The Chinese patent that publication No. is CN108976562A discloses a kind of polyethylene double-wall corrugated pipe and preparation method thereof.
Its structure includes internal layer and outer layer, and internal layer includes 30-40 parts of polyethylene, and 5-10 parts of thermoplastic polyurethane, calcium carbonate powder 3-8
Part, 3-5 parts of coupling agent, 1-3 parts of dispersing agent, 1-2 parts of lubricant；Outer layer include 60-70 parts of polyethylene, 10-15 parts of terpene resin,
2-5 parts of calcium carbonate powder, 6-8 parts of coupling agent, 2-3 parts of dispersing agent, 1-2 parts of lubricant.
Claimed polyethylene double-wall corrugated pipe in inner layer pipe by adding thermoplastic poly ammonia in this application file
Ester so that inner layer pipe has certain corrosion resistance, and adds terpene resin in outer layer pipe and improves the rigid of outer layer pipe
Degree.But in extrusion molding, calcium carbonate powder, which is directly mixed with resin, is easy to appear the non-uniform situation of dispersion, even if adding
Dispersing agent is still still it is possible that calcium carbonate powder reunion, influences the quality of bellows.
Summary of the invention
Goal of the invention one of the invention is to provide a kind of steel band reinforced spiral ripple pipe, and the component mixing of the bellows is equal
Even, bellows performance is good.
Foregoing invention purpose one of the invention has the technical scheme that
A kind of steel band reinforced spiral ripple pipe successively includes outside polyethylene inner layer, steel belt layer and polyethylene layer from the inside to the outside
Layer, steel band layer surface are coated with adhering resin layer；
The polyethylene inner layer and outer layer of polyethene include following component, HDPE, carbon nanotube, epoxidized soybean oil, nitrogen
Change aluminium, dispersing agent, lubricant, defoaming agent, coupling agent, antioxidant, black masterbatch；
The black masterbatch includes following component, HDPE, calcium activated, dispersing agent, lubricant, toughener, carbon black.
By using above-mentioned technical proposal, in the component of polyethylene inner layer and outer layer of polyethene, HDPE is high-density polyethylene
Alkene, hardness, tensile strength and creep properties are better than low density polyethylene (LDPE)；Wearability, electrical insulating property, toughness and cold resistance are good, change
Stability is good, and small to the permeability of vapor and air, water imbibition is low；Loss of properties on aging, environmental stress crack resistance is not
As low density polyethylene (LDPE), especially thermal oxidation decline its performance.So being additionally added carbon nanometer in present specification
Pipe, carbon nanotube is compound with HDPE material, has good intensity, elasticity, fatigue resistance and isotropism.
Epoxidized soybean oil has excellent thermal stability and photostability, and water resistance and oil resistivity are also more excellent, can assign
The good mechanical strength of product, weatherability and electrical property are given, volatility is small, and migration is low, heat resistance, light resistance, excellent weather resistance and hard
It is good.
Aluminium nitride can play anti-shearing, tear-proof function and effect for using in the raw material of bellows.
Base-material in black masterbatch is HDPE, can between polyethylene inner layer or the component of outer layer of polyethene amalgamation it is good,
Realize the dispersing uniformity of carbon black.
Improve the dispersion stabilization between component in present specification, realizes that the performance of final product is stablized, it will be black
Color masterbatch is prepared into Masterbatch, and when preparing bellows, carbon black, calcium activated in Masterbatch can be evenly distributed in component,
And consistent, the selection HDPE, according to similar that gathers materials of the base-material of black masterbatch and polyvinyl chloride internal layer and the outer layer component of polyvinyl chloride
Compatibility principle is realized and is uniformly dispersed between component, and avoids the performance of material caused by the carbonization occurred in process not
Uniform situation.
The present invention is further arranged to: in polyvinyl chloride internal layer and outer layer of polyethene, dispersing agent is polyethylene wax, stearic acid
At least one of magnesium, calcium stearate, zinc stearate；Lubricant be oleamide, polyethylene wax, in stearic amide at least
It is a kind of；Coupling agent is at least one of silane coupling agent, phthalate ester coupling agent；
In black masterbatch, dispersing agent is at least one of polyethylene wax, magnesium stearate, calcium stearate, zinc stearate；Lubrication
Agent is at least one of oleamide, polyethylene wax, stearic amide；Toughener is styrene-butadiene analog thermoplastic bullet
Property body, EP rubbers or ethylene-vinyl acetate copolymer.
By using above-mentioned technical proposal, the addition of polyvinyl chloride internal layer and the dispersing agent in polyvinyl chloride outer layer can change
Dispersing uniformity between kind component reduces the generation for the phenomenon that depositing or reuniting.
The mobility of polymeric system bellows, reduction polymer and material can be improved in basic processing and forming in lubricant
The adhesiveness and fretting wear of cylinder and mold, prevent and reduce retentate, in addition it can improve the appearances of ripple tubing products with
Gloss.
By chemically and physically acting on, material that is two kinds of nature differences are very big, being not easy to combine originally compares coupling agent
Firmly combine.
Toughener can increase the flexibility of adhesive film layer.Lower brittleness, increases toughness.
The present invention is further arranged to: the adhering resin includes following component, HDPE, polyurethane resin, terpene resin,
Acrylic acid, filler, lubricant.
Also include HDPE in the base-material in adhering resin component by using above-mentioned technical proposal, effect when with it is interior
The bridging property of layer and outer layer is good.
The present invention is further arranged to: filler is one of nano-titanium dioxide, calcium carbonate crystal whisker in adhering resin；Profit
Lubrication prescription is one of oleamide, polyethylene wax, stearic amide.
By using above-mentioned technical proposal, the addition of specific filler can reduce cost；The addition of lubricant can change
The dispersion performance of kind component.
The present invention is further arranged to: the steel strip reinforced bellows includes the component of following parts by weight,
The polyethylene layer includes following component, 120-170 parts of HDPE, 3-5 parts of carbon nanotube, epoxidized soybean oil 5-10
Part, 5-10 parts of aluminium nitride, 10-15 parts of dispersing agent, 5-10 parts of lubricant, 10-20 parts of defoaming agent, 5-10 parts of coupling agent, antioxidant
5-10 parts, 15-20 parts of black masterbatch；
The black masterbatch includes following component, 30-50 parts of HDPE, 50-70 parts of calcium activated, 2-5 parts of dispersing agent, lubricant
2-5 parts, 3-5 parts of toughener, 5-10 parts of carbon black；
Adhering resin includes following component, 55-60 parts of HDPE, 10-20 parts of polyurethane resin, 3-5 parts of terpene resin, third
50-60 parts of olefin(e) acid, 15-20 parts of filler, 1-3 parts of lubricant.
By using above-mentioned technical proposal, the content of specific component material is selected in above-mentioned range, final to make
The comprehensive performance of the standby bellows come out is strong, and performance is uniform.
Second goal of the invention of the invention is to provide a kind of production technology of steel band reinforced spiral ripple pipe, prepare
Bellows function admirable.
Foregoing invention purpose two of the invention has the technical scheme that including following preparation step
It is rapid:
Step 1: steel band frosting treatment coats adhering resin layer in steel strip surface in a heated condition after processing, spare；
Step 2: black masterbatch and adhering resin are prepared respectively, it is spare；
Step 3: polyethylene extrusion internal layer first, then steel band is placed in polyethylene inner layer, then by outer layer of polyethene
Component mixing after be granulated, rear polyethylene extrusion outer layer is compounded on steel band to get steel band reinforced spiral ripple pipe.
By using above-mentioned technical proposal, step 1 can complete the system of steel strip reinforced bellows to the process of step 3
It is standby.
The present invention is further arranged to: the steel band frosting treatment in step 1 includes the following steps, namely
S1, steel strip surface form concaveconvex structure through laser treatment；
S2, steel strip surface greasy dirt is cleaned using cleaning medical fluid；
Steel band is heated after S3, cleaning；
S4, steel strip surface are zinc-plated, dry after zinc-plated.
By using above-mentioned technical proposal, steel band frosting treatment can be connected between teel band and internal layer and outer layer
Closely；Secondly the concaveconvex structure that is formed during the preparation process, concaveconvex structure, the processing of removal surface and oil contaminant and it is zinc-plated can be into
Connective stability between the component of one step.
The present invention is further arranged to: the cleaning medical fluid in S2 includes the component of following parts by weight, sodium hydroxide 20-
25%, sodium carbonate 5-20%, sodium bicarbonate 10-20%, sodium molybdate 15-40%.
By using above-mentioned technical proposal, the sodium hydroxide of addition can play the role of neutralizing greasy dirt.Sodium molybdate adds
Enter the stability that can further enhance zinc coat.
In conclusion advantageous effects of the invention are as follows:
1. the steel band reinforced spiral ripple pipe in present specification is in the selection of component, the material component of internal layer and outer layer
Selection is consistent, and the substrate of adhering resin layer is consistent with the substrate of internal layer and outer layer, improves the feelings using the layering that the later period occurs
Condition, and improve the non-uniform situation of carbonization effect material property caused by the processing conditions difference of unlike material；
To there is ageing-resistant ability in 2.HDPE poor when in use, and environmental stress crack resistance is not so good as low density polyethylene (LDPE), this Shen
Above-mentioned problem please not be improved in file, being added in component has carbon nanotube, and the presence of carbon nanotube enhances bellows
Intensity；
3. the zinc-plated operation of steel strip surface enhances bonding fastness of the steel band with adhering resin.
Specific embodiment
Embodiment 1
Steel band reinforced spiral ripple pipe, including following components by weight percent:
Polyethylene layer includes following component, HDPE120kg, carbon nanotube 3kg, epoxidized soybean oil 5kg, aluminium nitride 5kg, is divided
Powder 10kg, lubricant 5kg, defoaming agent 10kg, coupling agent 5kg, antioxidant 10kg, black masterbatch 15kg.
The production technology of bellows comprises the following steps that
Step 1: steel band frosting treatment coats adhering resin layer in steel strip surface in a heated condition after processing, spare；
Step 2: black masterbatch and adhering resin are prepared respectively, it is spare；
Step 3: it is extruded into layer of polyethylene internal layer through extruder first, then steel band is placed in polyethylene inner layer,
Then it is granulated after the component of outer layer of polyethene being mixed, rear polyethylene extrusion outer layer is compounded on steel band to get steel strip reinforced spiral shell
Revolve bellows.
Steel band frosting treatment includes the following steps, namely in step 1
S1, steel strip surface form concaveconvex structure through laser treatment；
S2, steel strip surface greasy dirt is cleaned using cleaning medical fluid；The concrete component of medical fluid include 30% sodium hydroxide, 15%
's
Ammonium carbonate, 15% sodium bicarbonate, 40% sodium molybdate；
Steel band is heated after S3, cleaning, heating temperature is 300 DEG C；
S4, steel strip surface are zinc-plated, and the steel band after heating is added into 440 DEG C of zinc liquid, impregnate 30S, zinc-plated component
Are as follows: sodium hydroxide 230g/L, zinc oxide 15g/L, brightener 15g/L, chromic anhybride 1.8g/L, hydrogen fluoride 1.5g/L, nitric acid 5mL/
L, sulfuric acid 2mL/L is dried up spare after zinc-plated.
Black masterbatch includes following component, HDPE30kg, calcium activated 50kg, dispersing agent 2kg, lubricant 2kg, toughener 3kg,
Carbon black 5kg.
The preparation process of black masterbatch includes: to be uniformly mixed HDPE, calcium activated, dispersing agent, lubricant, toughener, carbon black
Melting extrusion is granulated afterwards, and the temperature of extruder is controlled in extrusion process in 190-200 DEG C of section.
Adhering resin includes following component, HDPE 55kg, polyurethane resin 10kg, terpene resin 3kg, acrylic acid 50kg,
Filler 15kg, lubricant 1kg.
Viscous viscosity resin is HDPE, polyurethane resin, terpene resin, acrylic acid, filler and mix lubricant is uniform, heating
Melt it is spare, melting temperature be 200 DEG C.
Embodiment 2-10 the difference from embodiment 1 is that constituent content difference, referring specifically to table 1
Polyethylene inner layer/outer layer of 1 embodiment 1-10 of table and the content composition of adhering resin.
The content of additive in polyethylene inner layer/outer layer of polyethene of 2 embodiment 1-10 of table.
The constituent content of the adhering resin of 3 embodiment 1-10 of table
The constituent content of the black masterbatch of 4 embodiment 1-10 of table
The constituent content of the additive of the black masterbatch of 5 embodiment 1-10 of table
The constituent content of the cleaning solution of 6 embodiment 1-10 of table.
Comparative example
Comparative example 1
Comparative example 1 is the difference from embodiment 1 is that be added without black masterbatch in polyethylene inner layer and outer layer of polyethene, using straight
It connects and 5kg carbon black and 50kg calcium activated is added.
Comparative example 2
Comparative example 2 is not the difference from embodiment 1 is that contain carbon nanotube in polyethylene inner layer and outer layer of polyethene.
Comparative example 3
Comparative example 3 is not the difference from embodiment 1 is that contain epoxidized soybean oil in polyethylene inner layer and outer layer of polyethene.
Comparative example 4
Comparative example 4 is not the difference from embodiment 1 is that contain aluminium nitride in polyethylene inner layer and outer layer of polyethene.
Comparative example 5
Comparative example 5 the difference from embodiment 1 is that do not contain aluminium nitride, ring simultaneously in polyethylene inner layer and outer layer of polyethene
Oxygen soybean oil and carbon nanotube.
Experiment detection
1, the impact property of double-wall corrugated pipe, ring stiffness, ring flexibility, baking oven are tested according to GB/T 19472.1-2004
Performance is detected.
Ring flexibility: it is required that sample is round and smooth, no back-flexing, crack-free, two walls are without disengagement；
Oven test: it is required that bubble-free, no layering, no cracking.
The laboratory test results of table 7 embodiment 1-10 and comparative example 1-2
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Impact property (TIR)/% | ≤3 | ≤5 | ≤5 | ≤4 | ≤2 |
| Ring stiffness (KN/m2) | 12.5 | 12.7 | 12.6 | 13.1 | 13.2 |
| Ring is flexible | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Baking oven tests (110 DEG C) | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Detection project | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| Impact property (TIR)/% | ≤4 | ≤4 | ≤3 | ≤4 | ≤5 |
| Ring stiffness (KN/m2) | 13.1 | 13.2 | 13.4 | 13.5 | 13.6 |
| Ring is flexible | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Baking oven tests (110 DEG C) | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| Detection project | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 |
| Impact property (TIR)/% | ≤8 | ≤7 | ≤8 | ≤8 | ≤10 |
| Ring stiffness (KN/m2) | 11.7 | 11.2 | 11.3 | 11.4 | 9.5 |
| Ring is flexible | There is rupture | There is rupture | There is rupture | There is rupture | Two walls cracking |
| Baking oven tests (110 DEG C) | It is qualified | There is layering | It is qualified | It is qualified | There is layering |
The experimental result of comparative example 1-10 and comparative example 1, You Shangbiao can be derived that carbon black and calcium activated and HDPE
Mixing, it is previously prepared to enable to toner to be evenly distributed at black masterbatch, it improves and is unevenly distributed the case where influencing performance.
The experimental result of comparative example 1-10 and comparative example 2-4, can significantly obtain in component be added carbon nanotube,
Epoxidized soybean oil and aluminium nitride can improve the performance of material, enhance the shock resistance and ring stiffness of HDPE pipe.Then this Shen
It asks someone reasonably show that carbon nanotube, epoxidized soybean oil and the aluminium nitride of addition are capable of the performance of reinforcing material.
The experimental result for continuing comparative example 1-10 and comparative example 5, can be derived that carbon nanotube, epoxidized soybean oil and nitrogen
Change aluminium with the use of that can interact, promotion can be brought to the flexible of HDPE and rigidity.Applicant speculates carbon nanometer
Pipe, epoxidized soybean oil and aluminium nitride are added into the component of polyethylene inner layer and outer layer of polyethene, can mainly improve resin
Between dispersibility in component of bridging property and additive, can be promoted the property of material.
In 1-10 grades of comparative example 1-5 of embodiment
Defoaming agent in polyethylene inner layer/outer layer of polyethene purchases the prestressing force bellows from Xiong County Long great plastic products factory
Defoaming agent；
Antioxidant selects antioxidant 1010；
Silane coupling agent selects KH-550, specific to purchase from Jinan good governance trade Co., Ltd；
Phthalate ester coupling agent selects phthalate ester coupling agent 311.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of steel band reinforced spiral ripple pipe, it is characterised in that: from the inside to the outside successively include polyethylene inner layer, steel belt layer and poly-
Pvdf layer outer layer, steel band layer surface are coated with adhering resin layer；
The polyethylene inner layer and outer layer of polyethene include following component, HDPE, carbon nanotube, epoxidized soybean oil, aluminium nitride,
Dispersing agent, lubricant, defoaming agent, coupling agent, antioxidant, black masterbatch；
The black masterbatch includes following component, HDPE, calcium activated, dispersing agent, lubricant, toughener, carbon black.
2. steel band reinforced spiral ripple pipe according to claim 1, it is characterised in that: outside polyvinyl chloride internal layer and polyethylene
In layer, dispersing agent is at least one of polyethylene wax, magnesium stearate, calcium stearate, zinc stearate；Lubricant is oleic acid acyl
At least one of amine, polyethylene wax, stearic amide；Coupling agent is silane coupling agent, at least one in phthalate ester coupling agent
Kind；
In black masterbatch, dispersing agent is at least one of polyethylene wax, magnesium stearate, calcium stearate, zinc stearate；Lubricant is
At least one of oleamide, polyethylene wax, stearic amide；Toughener be styrene-butadiene analog thermoplastic elastomer,
EP rubbers or ethylene-vinyl acetate copolymer.
3. steel band reinforced spiral ripple pipe according to claim 1, it is characterised in that: the adhering resin includes such as the following group
Point, HDPE, polyurethane resin, terpene resin, acrylic acid, filler, lubricant.
4. steel band reinforced spiral ripple pipe according to claim 3, it is characterised in that: filler is nanometer two in adhering resin
One of titanium oxide, calcium carbonate crystal whisker；Lubricant is one of oleamide, polyethylene wax, stearic amide.
5. steel band reinforced spiral ripple pipe according to claim 1-4, it is characterised in that: the steel strip reinforced wave
Line pipe includes the component of following parts by weight,
The polyethylene layer includes following component, 120-170 parts of HDPE, 3-5 parts of carbon nanotube, 5-10 parts of epoxidized soybean oil, nitrogen
Change aluminium 5-10 parts, 10-15 parts of dispersing agent, 5-10 parts of lubricant, 10-20 parts of defoaming agent, 5-10 parts of coupling agent, antioxidant 5-10
Part, 15-20 parts of black masterbatch；
The black masterbatch includes following component, 30-50 parts of HDPE, 50-70 parts of calcium activated, 2-5 parts of dispersing agent, lubricant 2-5
Part, 3-5 parts of toughener, 5-10 parts of carbon black；
Adhering resin includes following component, 55-60 parts of HDPE, 10-20 parts of polyurethane resin, 3-5 parts of terpene resin, acrylic acid
50-60 parts, 15-20 parts of filler, 1-3 parts of lubricant.
6. a kind of preparation process of steel band reinforced spiral ripple pipe as claimed in claim 5, it is characterised in that: including following
Preparation step:
Step 1: steel band frosting treatment coats adhering resin layer in steel strip surface in a heated condition after processing, spare；
Step 2: black masterbatch and adhering resin are prepared respectively, it is spare；
Step 3: polyethylene extrusion internal layer first, then steel band is placed in polyethylene inner layer, then by the group of outer layer of polyethene
It is granulated after dividing mixing, rear polyethylene extrusion outer layer is compounded on steel band to get steel band reinforced spiral ripple pipe.
7. the production technology of steel band reinforced spiral ripple pipe according to claim 6, which is characterized in that the steel in step 1
Band frosting treatment includes the following steps, namely
S1, steel strip surface form concaveconvex structure through laser treatment；
S2, steel strip surface greasy dirt is cleaned using cleaning medical fluid；
Steel band is heated after S3, cleaning；
S4, steel strip surface are zinc-plated, dry after zinc-plated.
8. the production technology of steel band reinforced spiral ripple pipe according to claim 7, which is characterized in that the cleaning medicine in S2
Liquid includes the component of following parts by weight, sodium hydroxide 30-40%, sodium carbonate 10-20%, sodium bicarbonate 10-20%, sodium molybdate 25-
40%。
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| CN111004428A (en) * | 2019-12-23 | 2020-04-14 | 海南联塑科技实业有限公司 | Special color master batch for polyethylene water supply pipe and preparation method and application thereof |
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| CN113462060A (en) * | 2021-07-30 | 2021-10-01 | 安徽豪洋管业科技有限公司 | HDPE double-wall corrugated pipe processing and extruding process |
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Denomination of invention: Steel belt reinforced spiral corrugated pipe and its production technology Effective date of registration: 20220422 Granted publication date: 20201103 Pledgee: Xi'an Science and Technology Financial Service Center Co.,Ltd. Pledgor: SHAANXI FLYING PIPE TECHNOLOGY Co.,Ltd. Registration number: Y2022610000179 |
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